Faucet mounting gasket



FIG. 1 is an isometric view taken from the top, front and right end of a faucet mounting gasket showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a faucet mounting gasket, substantially as shown and described. 